Pectus excavatum in motion: dynamic evaluation using real-time MRI. - Gräfe, Daniel; Lacher, Martin; Martynov, Illya; Hirsch, Franz Wolfgang; Voit, Dirk; Frahm, Jens; Busse, Harald; Sesia, Sergio Bruno; Krämer, Sebastian; Zimmermann, Peter (European Radiology, 2023)